The whole point of a password manager is to be reliable when shit hits the fan. If my phone dies I want every changes to be available to the other synced devices, especially when it has been away from home for a while (losing newly created accounts or passwords during a trip is just miserable)
My phone doesn't have my main password safe. I don't trust that thing. If a stupid app decides to log me out, I can't login until I'm back home. I never created an account "on the go", but I had to do a password reset once. I will use a standard password until I'm back and change it to a randomly created one.
I can't even login to my bank without a special token device. I don't have that with me either.
A different life is possible. That's all I'm saying.